* syslex.l: Adjust top-of-file comment: this file is part of GNU
[deliverable/binutils-gdb.git] / binutils / objdump.c
index fa421ad7d5d274a428d95dcf5162c61d3b08651f..52cd3d005cc051ffd1e2a53156dcea60f1955a56 100644 (file)
@@ -1,6 +1,6 @@
 /* objdump.c -- dump information about an object file.
    Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
-   2000, 2001, 2002, 2003, 2004
+   2000, 2001, 2002, 2003, 2004, 2005
    Free Software Foundation, Inc.
 
    This file is part of GNU Binutils.
@@ -128,6 +128,9 @@ struct objdump_disasm_info
   arelent **         dynrelbuf;
   long               dynrelcount;
   disassembler_ftype disassemble_fn;
+#ifdef DISASSEMBLER_NEEDS_RELOCS
+  arelent *          reloc;
+#endif
 };
 
 /* Architecture to disassemble for, or default if NULL.  */
@@ -290,12 +293,17 @@ nonfatal (const char *msg)
 }
 \f
 static void
-dump_section_header (bfd *abfd ATTRIBUTE_UNUSED, asection *section,
+dump_section_header (bfd *abfd, asection *section,
                     void *ignored ATTRIBUTE_UNUSED)
 {
   char *comma = "";
   unsigned int opb = bfd_octets_per_byte (abfd);
 
+  /* Ignore linker created section.  See elfNN_ia64_object_p in
+     bfd/elfxx-ia64.c.  */
+  if (section->flags & SEC_LINKER_CREATED)
+    return;
+
   printf ("%3d %-13s %08lx  ", section->index,
          bfd_get_section_name (abfd, section),
          (unsigned long) bfd_section_size (abfd, section) / opb);
@@ -324,12 +332,16 @@ dump_section_header (bfd *abfd ATTRIBUTE_UNUSED, asection *section,
   PF (SEC_NEVER_LOAD, "NEVER_LOAD");
   PF (SEC_EXCLUDE, "EXCLUDE");
   PF (SEC_SORT_ENTRIES, "SORT_ENTRIES");
-  PF (SEC_BLOCK, "BLOCK");
-  PF (SEC_CLINK, "CLINK");
+  if (bfd_get_arch (abfd) == bfd_arch_tic54x)
+    {
+      PF (SEC_TIC54X_BLOCK, "BLOCK");
+      PF (SEC_TIC54X_CLINK, "CLINK");
+    }
   PF (SEC_SMALL_DATA, "SMALL_DATA");
-  PF (SEC_SHARED, "SHARED");
-  PF (SEC_ARCH_BIT_0, "ARCH_BIT_0");
+  if (bfd_get_flavour (abfd) == bfd_target_coff_flavour)
+    PF (SEC_COFF_SHARED, "SHARED");
   PF (SEC_THREAD_LOCAL, "THREAD_LOCAL");
+  PF (SEC_GROUP, "GROUP");
 
   if ((section->flags & SEC_LINK_ONCE) != 0)
     {
@@ -848,7 +860,10 @@ objdump_print_addr (bfd_vma vma,
                    bfd_boolean skip_zeroes)
 {
   struct objdump_disasm_info *aux;
-  asymbol *sym;
+  asymbol *sym = NULL; /* Initialize to avoid compiler warning.  */
+#ifdef DISASSEMBLER_NEEDS_RELOCS
+  bfd_boolean skip_find = FALSE;
+#endif
 
   if (sorted_symcount < 1)
     {
@@ -858,7 +873,25 @@ objdump_print_addr (bfd_vma vma,
     }
 
   aux = (struct objdump_disasm_info *) info->application_data;
-  sym = find_symbol_for_address (vma, info, NULL);
+
+#ifdef DISASSEMBLER_NEEDS_RELOCS
+  if (aux->reloc != NULL
+      && aux->reloc->sym_ptr_ptr != NULL
+      && * aux->reloc->sym_ptr_ptr != NULL)
+    {
+      sym = * aux->reloc->sym_ptr_ptr;
+
+      /* Adjust the vma to the reloc.  */
+      vma += bfd_asymbol_value (sym);
+
+      if (bfd_is_und_section (bfd_get_section (sym)))
+       skip_find = TRUE;
+    }
+
+  if (!skip_find)
+#endif
+    sym = find_symbol_for_address (vma, info, NULL);
+
   objdump_print_addr_with_sym (aux->abfd, aux->sec, sym, vma, info,
                               skip_zeroes);
 }
@@ -1202,9 +1235,7 @@ process_section_p (asection * section)
 /* The number of zeroes we want to see before we start skipping them.
    The number is arbitrarily chosen.  */
 
-#ifndef SKIP_ZEROES
-#define SKIP_ZEROES (8)
-#endif
+#define DEFAULT_SKIP_ZEROES 8
 
 /* The number of zeroes to skip at the end of a section.  If the
    number of zeroes at the end is between SKIP_ZEROES_AT_END and
@@ -1213,9 +1244,7 @@ process_section_p (asection * section)
    attempt to avoid disassembling zeroes inserted by section
    alignment.  */
 
-#ifndef SKIP_ZEROES_AT_END
-#define SKIP_ZEROES_AT_END (3)
-#endif
+#define DEFAULT_SKIP_ZEROES_AT_END 3
 
 /* Disassemble some data in memory between given values.  */
 
@@ -1236,7 +1265,10 @@ disassemble_bytes (struct disassemble_info * info,
   bfd_boolean done_dot;
   int skip_addr_chars;
   bfd_vma addr_offset;
-  int opb = info->octets_per_byte;
+  unsigned int opb = info->octets_per_byte;
+  unsigned int skip_zeroes = info->skip_zeroes;
+  unsigned int skip_zeroes_at_end = info->skip_zeroes_at_end;
+  int octets = opb;
   SFILE sfile;
 
   aux = (struct objdump_disasm_info *) info->application_data;
@@ -1281,8 +1313,14 @@ disassemble_bytes (struct disassemble_info * info,
   while (addr_offset < stop_offset)
     {
       bfd_vma z;
-      int octets = 0;
       bfd_boolean need_nl = FALSE;
+#ifdef DISASSEMBLER_NEEDS_RELOCS
+      int previous_octets;
+
+      /* Remember the length of the previous instruction.  */
+      previous_octets = octets;
+#endif
+      octets = 0;
 
       /* If we see more than SKIP_ZEROES octets of zeroes, we just
         print `...'.  */
@@ -1292,9 +1330,9 @@ disassemble_bytes (struct disassemble_info * info,
       if (! disassemble_zeroes
          && (info->insn_info_valid == 0
              || info->branch_delay_insns == 0)
-         && (z - addr_offset * opb >= SKIP_ZEROES
+         && (z - addr_offset * opb >= skip_zeroes
              || (z == stop_offset * opb &&
-                 z - addr_offset * opb < SKIP_ZEROES_AT_END)))
+                 z - addr_offset * opb < skip_zeroes_at_end)))
        {
          printf ("\t...\n");
 
@@ -1344,22 +1382,43 @@ disassemble_bytes (struct disassemble_info * info,
            {
              sfile.pos = 0;
              info->fprintf_func = (fprintf_ftype) objdump_sprintf;
-             info->stream = (FILE *) &sfile;
+             info->stream = &sfile;
              info->bytes_per_line = 0;
              info->bytes_per_chunk = 0;
+             info->flags = 0;
 
 #ifdef DISASSEMBLER_NEEDS_RELOCS
-             /* FIXME: This is wrong.  It tests the number of octets
-                in the last instruction, not the current one.  */
-             if (*relppp < relppend
-                 && (**relppp)->address >= rel_offset + addr_offset
-                 && ((**relppp)->address
-                     < rel_offset + addr_offset + octets / opb))
-               info->flags = INSN_HAS_RELOC;
-             else
+             if (*relppp < relppend)
+               {
+                 bfd_signed_vma distance_to_rel;
+
+                 distance_to_rel = (**relppp)->address
+                   - (rel_offset + addr_offset);
+
+                 /* Check to see if the current reloc is associated with
+                    the instruction that we are about to disassemble.  */
+                 if (distance_to_rel == 0
+                     /* FIXME: This is wrong.  We are trying to catch
+                        relocs that are addressed part way through the
+                        current instruction, as might happen with a packed
+                        VLIW instruction.  Unfortunately we do not know the
+                        length of the current instruction since we have not
+                        disassembled it yet.  Instead we take a guess based
+                        upon the length of the previous instruction.  The
+                        proper solution is to have a new target-specific
+                        disassembler function which just returns the length
+                        of an instruction at a given address without trying
+                        to display its disassembly. */
+                     || (distance_to_rel > 0
+                         && distance_to_rel < (bfd_signed_vma) (previous_octets/ opb)))
+                   {
+                     info->flags = INSN_HAS_RELOC;
+                     aux->reloc = **relppp;
+                   }
+                 else
+                   aux->reloc = NULL;
+               }
 #endif
-               info->flags = 0;
-
              octets = (*disassemble_fn) (section->vma + addr_offset, info);
              info->fprintf_func = (fprintf_ftype) fprintf;
              info->stream = stdout;
@@ -1816,6 +1875,9 @@ disassemble_data (bfd *abfd)
   aux.require_sec = FALSE;
   aux.dynrelbuf = NULL;
   aux.dynrelcount = 0;
+#ifdef DISASSEMBLER_NEEDS_RELOCS
+  aux.reloc = NULL;
+#endif
 
   disasm_info.print_address_func = objdump_print_address;
   disasm_info.symbol_at_address_func = objdump_symbol_at_address;
@@ -1855,6 +1917,8 @@ disassemble_data (bfd *abfd)
   disasm_info.mach = bfd_get_mach (abfd);
   disasm_info.disassembler_options = disassembler_options;
   disasm_info.octets_per_byte = bfd_octets_per_byte (abfd);
+  disasm_info.skip_zeroes = DEFAULT_SKIP_ZEROES;
+  disasm_info.skip_zeroes_at_end = DEFAULT_SKIP_ZEROES_AT_END;
 
   if (bfd_big_endian (abfd))
     disasm_info.display_endian = disasm_info.endian = BFD_ENDIAN_BIG;
@@ -2053,7 +2117,8 @@ find_stabs_section (bfd *abfd, asection *section, void *names)
       
       if (strtab)
        {
-         stabs = read_section_stabs (abfd, section->name, &stab_size);
+         stabs = (bfd_byte *) read_section_stabs (abfd, section->name,
+                                                  &stab_size);
          if (stabs)
            print_section_stabs (abfd, section->name, &sought->string_offset);
        }
@@ -2286,8 +2351,9 @@ dump_symbols (bfd *abfd ATTRIBUTE_UNUSED, bfd_boolean dynamic)
        printf (_("could not determine the type of symbol number %ld\n"),
                count);
 
-      else if (dump_special_syms
-              || !bfd_is_target_special_symbol (cur_bfd, *current))
+      else if (process_section_p ((* current)->section)
+              && (dump_special_syms
+                  || !bfd_is_target_special_symbol (cur_bfd, *current)))
        {
          const char *name = (*current)->name;
 
@@ -2310,6 +2376,7 @@ dump_symbols (bfd *abfd ATTRIBUTE_UNUSED, bfd_boolean dynamic)
                              bfd_print_symbol_all);
          printf ("\n");
        }
+
       current++;
     }
   printf ("\n\n");
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